e37cf73300
The old name is the result of the perhaps somewhat confusingly named abstract operation OrdinaryFunctionCreate(), which creates an "ordinary object" (https://tc39.es/ecma262/#ordinary-object) in contrast to an "exotic object" (https://tc39.es/ecma262/#exotic-object). However, the term "Ordinary Function" is not used anywhere in the spec, instead the created object is referred to as an "ECMAScript Function Object" (https://tc39.es/ecma262/#sec-ecmascript-function-objects), so let's call it that. The "ordinary" vs. "exotic" distinction is important because there are also "Built-in Function Objects", which can be either implemented as ordinary ECMAScript function objects, or as exotic objects (our NativeFunction). More work needs to be done to move a lot of infrastructure to ECMAScriptFunctionObject in order to make FunctionObject nothing more than an interface for objects that implement [[Call]] and optionally [[Construct]].
65 lines
2.5 KiB
C++
65 lines
2.5 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibJS/AST.h>
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#include <LibJS/Bytecode/Generator.h>
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#include <LibJS/Runtime/FunctionObject.h>
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namespace JS {
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// 10.2 ECMAScript Function Objects, https://tc39.es/ecma262/#sec-ecmascript-function-objects
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class ECMAScriptFunctionObject final : public FunctionObject {
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JS_OBJECT(ECMAScriptFunctionObject, FunctionObject);
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public:
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static ECMAScriptFunctionObject* create(GlobalObject&, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, Environment* parent_scope, FunctionKind, bool is_strict, bool is_arrow_function = false);
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ECMAScriptFunctionObject(GlobalObject&, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, Environment* parent_scope, Object& prototype, FunctionKind, bool is_strict, bool is_arrow_function = false);
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virtual void initialize(GlobalObject&) override;
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virtual ~ECMAScriptFunctionObject();
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const Statement& body() const { return m_body; }
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const Vector<FunctionNode::Parameter>& parameters() const { return m_parameters; };
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virtual Value call() override;
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virtual Value construct(FunctionObject& new_target) override;
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virtual const FlyString& name() const override { return m_name; };
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void set_name(const FlyString& name);
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void set_is_class_constructor() { m_is_class_constructor = true; };
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auto& bytecode_executable() const { return m_bytecode_executable; }
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virtual Environment* environment() override { return m_environment; }
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virtual Realm* realm() const override { return m_realm; }
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protected:
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virtual bool is_strict_mode() const final { return m_is_strict; }
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private:
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virtual bool is_ecmascript_function_object() const override { return true; }
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virtual FunctionEnvironment* create_environment(FunctionObject&) override;
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virtual void visit_edges(Visitor&) override;
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Value execute_function_body();
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FlyString m_name;
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NonnullRefPtr<Statement> m_body;
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const Vector<FunctionNode::Parameter> m_parameters;
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Optional<Bytecode::Executable> m_bytecode_executable;
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Environment* m_environment { nullptr };
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Realm* m_realm { nullptr };
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i32 m_function_length { 0 };
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FunctionKind m_kind { FunctionKind::Regular };
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bool m_is_strict { false };
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bool m_is_arrow_function { false };
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bool m_is_class_constructor { false };
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};
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}
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